Home / 19,913.38-27,450.97-12,742.52

Finding the Fourth Proportional to 19,913.38, 27,450.97 and 12,742.52

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Solution

The fourth proportional to 19,913.38, 27,450.97 and 12,742.52 is: 17,565.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,913.38 : 27,450.97 = 12,742.52 : x
  2. Step 2: Convert to fraction form
    19,913.38/27,450.97 = 12,742.52/x
  3. Step 3: Cross multiply
    19,913.38x = 27,450.97 × 12,742.52
  4. Step 4: Simplify right side
    19,913.38x = 349,794,365.13
  5. Step 5: Solve for x
    x = 349,794,365.13/19,913.38
  6. Step 6: Final answer
    x = 17,565.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.